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Psoriasis: case rate--HL-A antigen frequency correlations

R J Thomas

    Dermatologica
    |January 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Human Leukocyte Antigen (HLA) B17 and B13 antigens are linked to psoriasis. A combined frequency of these HLA antigens shows a significant correlation with psoriasis prevalence across populations.

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    Area of Science:

    • Immunogenetics
    • Dermatology
    • Epidemiology

    Background:

    • Psoriasis exhibits a notable familial aggregation, suggesting a genetic component.
    • Specific Human Leukocyte Antigen (HLA) types have been previously associated with psoriasis susceptibility.

    Purpose of the Study:

    • To investigate the correlation between specific HLA antigen frequencies and population-level psoriasis case rates.
    • To determine if HLA-B17 and HLA-B13 individually or combined correlate with psoriasis prevalence.

    Main Methods:

    • Correlation analysis was performed between the frequencies of HLA-B17 and HLA-B13 antigens and national psoriasis case rates.
    • Statistical significance was assessed using correlation coefficients (r-values).

    Main Results:

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    • HLA antigen B17 showed a strong significant correlation (r=0.8242) with psoriasis case rates.
    • HLA antigen B13 alone did not show a significant correlation (r=0.4299) with psoriasis case rates.
    • The combined frequency of HLA-B13 and HLA-B17 antigens demonstrated a significant correlation (r=0.7405) with psoriasis case rates.

    Conclusions:

    • HLA antigen B17 is strongly associated with psoriasis prevalence.
    • The combined presence of HLA-B13 and HLA-B17 antigens is a significant indicator of psoriasis case rates in populations surveyed.
    • These findings reinforce the role of specific HLA antigens in the genetic predisposition to psoriasis.